Canada's new higher tariff comes as a result of its inaction in the "illicit drug crisis" and its "retaliation against the United States" for its actions to address the threat, the White House says.
The country "has failed to cooperate in curbing the ongoing flood of fentanyl and other illicit drugs" and Trump has increased the country's tariff to "effectively address the existing emergency", it added.
Canadian Prime Minister Mark Carney said in July that it had made "vital progress to stop the scourge of fentanyl in North America."